ASTM D6820-18
- Standard Guide for Use of the Time Domain Electromagnetic Method for Subsurface Site Characterization
- standard by ASTM International, 02/01/2018
- Category: ASTM
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1.1 Purpose and Application:
1.1.1 This guide summarizes the equipment, field procedures, and interpretation methods for the assessment of subsurface materials and their pore fluids using the Time Domain Electromagnetic (TDEM) method. This method is also known as the Transient Electromagnetic (TEM) Method, and in this guide is referred to as the TDEM/TEM method. Time Domain and Transient refer to the measurement of a time-varying induced electromagnetic field.
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